Thoughts on these ?

Are these capable of running D2r ?

Maybe, idk if I'd trust integrated graphics alone though.
If small form factor is your thing why not just wait for the Steam Machine?

Hi,

I have just tried to go on the gmktec.com and my norton said URL:fake shop saying that this shop is a fraud because attackers created a fake online shop so you can make a purchase, but either the goods ordered are not delivered or turn out to be counterfeit.

Also my advice always check website before buy, https://uk.trustpilot.com/review/www.gmktec.com

Of course it's still your decision.